Power efficient communication system
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United States of America Patent
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Apr 21, 2009
Grant Date -
Nov 15, 2007
app pub date -
May 4, 2007
filing date -
May 15, 2006
priority date (Note) -
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Abstract
A monitoring system comprises a specific remote unit or monitor and a plurality of base stations that are capable of communicating with one another. A designated one of the plurality of base stations transmits a message via a wireless medium to the specific remote unit on behalf of the plurality of base stations, and the plurality of base stations use a shared base station identifier or shared sender address for communication with the specific remote unit or monitor. In another aspect, a first designated one transmits a message during a first time period and a second designated one transmits a message during a second time period. Receiving messages from a designated one of the plurality of base stations using the shared base station identifier helps the specific remote unit or monitor to reduce its power usage.
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